The phrase "small discrepancy" means a small difference or inconsistency between two things.
Sentences with «small discrepancy»
In conclusion, a very small discrepancy in the symmetry of the body can thus affect function of a joint and its surrounding muscles. (strengthsensei.com)
There's always small discrepancies — usually just a few percent — between different GPS and running watch data and for an everyday pounding of the pavement it's more than adequate. (t3.com)